refactor: move youtube primary subtitle config to youtube

src/config/definitions/defaults-core.ts

@@ -11,6 +11,7 @@ export const CORE_DEFAULT_CONFIG: Pick<
   | 'controller'
   | 'shortcuts'
   | 'secondarySub'
+  | 'youtube'
   | 'subsync'
   | 'startupWarmups'
   | 'auto_start_overlay'
@@ -93,6 +94,9 @@ export const CORE_DEFAULT_CONFIG: Pick<
     autoLoadSecondarySub: false,
     defaultMode: 'hover',
   },
+  youtube: {
+    primarySubLanguages: ['ja', 'jpn'],
+  },
   subsync: {
     defaultMode: 'auto',
     alass_path: '',

src/config/definitions/defaults-integrations.ts

@@ -152,6 +152,5 @@ export const INTEGRATIONS_DEFAULT_CONFIG: Pick<
       model: '',
       systemPrompt: '',
     },
-    primarySubLanguages: ['ja', 'jpn'],
   },
 };

src/config/definitions/domain-registry.test.ts

@@ -22,6 +22,7 @@ test('config option registry includes critical paths and has unique entries', ()
     'controller.enabled',
     'controller.scrollPixelsPerSecond',
     'startupWarmups.lowPowerMode',
+    'youtube.primarySubLanguages',
     'subtitleStyle.enableJlpt',
     'subtitleStyle.autoPauseVideoOnYomitanPopup',
     'ankiConnect.enabled',
@@ -43,6 +44,7 @@ test('config template sections include expected domains and unique keys', () =>
     'annotationWebsocket',
     'controller',
     'startupWarmups',
+    'youtube',
     'subtitleStyle',
     'ankiConnect',
     'yomitan',

src/config/definitions/options-core.ts

@@ -83,6 +83,12 @@ export function buildCoreConfigOptionRegistry(
       defaultValue: defaultConfig.logging.level,
       description: 'Minimum log level for runtime logging.',
     },
+    {
+      path: 'youtube.primarySubLanguages',
+      kind: 'string',
+      defaultValue: defaultConfig.youtube.primarySubLanguages.join(','),
+      description: 'Comma-separated primary subtitle language priority for YouTube auto-loading.',
+    },
     {
       path: 'controller.enabled',
       kind: 'boolean',

src/config/definitions/options-integrations.ts

@@ -411,11 +411,5 @@ export function buildIntegrationConfigOptionRegistry(
       description:
         'Optional system prompt override for legacy subtitle fallback post-processing; not used by default.',
     },
-    {
-      path: 'youtubeSubgen.primarySubLanguages',
-      kind: 'string',
-      defaultValue: defaultConfig.youtubeSubgen.primarySubLanguages.join(','),
-      description: 'Comma-separated primary subtitle language priority used by the launcher.',
-    },
   ];
 }

src/config/definitions/template-sections.ts

@@ -132,7 +132,7 @@ const INTEGRATION_TEMPLATE_SECTIONS: ConfigTemplateSection[] = [
   {
     title: 'YouTube Playback Settings',
     description: ['Defaults for SubMiner YouTube subtitle loading and languages.'],
-    key: 'youtubeSubgen',
+    key: 'youtube',
   },
   {
     title: 'Anilist',